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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Description of key information

The Henry's Law Constant (HLC) of MOVE 3 is calculated to be between 3629677.42 and 9376666.67 Pa m3/mol (20°C).

The values indicates that MOVE 3 has a very high tendency to distribute from water to the gas phase.

For risk assessment purpose the HLC is set equal to 6500000 Pa m3/mol.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
6 500 000
at the temperature of:
20 °C

Additional information

The Henry's Law Constant (HLC) of MOVE 3 is calculated according to the following equation:

 

Henry's Law Constant (HLC) = (VP x MOLW) / WS

(Reference: Guidance on Information Requirements and Chemical Safety Assessment_ Chapter R.16: Environmental Exposure Estimation_ Version 3_Equation R.16-4)

 

where:

VP = Vapour pressure (Pa) = 97000 Pa (at 20°C)

MOLW = Molecular Weight (g/mol) = 232 g/mol

WS = Water solubility (mg/L) = 2.46.2 mg/L (at 20°C)

 

As reported in Guidance on Information Requirements and Chemical Safety Assessment_Chapter

R.7a_v.6., substances with HLC values around 100 Pa·m3/mol, will have a rapid volatilisationfrom water.

Basing on the calculated Henry’s Law constant value, volatilization of Fluorosulfonic Adduct from water is expected to be very rapid.